Develop Reference

No overload for method 'ImageAnnotatorClient.Create' takes 1 arguments

I am using Google.Cloud.Vision.V1, Version=2.0.0.0 and the following below code from Google Vision API specify JSON file
using Google.Apis.Auth.OAuth2;
using Google.Cloud.Vision.V1;
using Grpc.Auth;
using Grpc.Core;
var credential = GoogleCredential.FromFile("VisionProject.json");
var channel = new Grpc.Core.Channel(ImageAnnotatorClient.DefaultEndpoint.ToString(), credential.ToChannelCredentials());
var client = ImageAnnotatorClient.Create(channel);
But its shows me this error No overload for method 'ImageAnnotatorClient.Create' takes 1 arguments.
I have found similar code in documentation https://googleapis.github.io/google-cloud-dotnet/docs/Google.Cloud.Vision.V1P2Beta1/api/Google.Cloud.Vision.V1P2Beta1.ImageAnnotatorClient.html
But for some reason, it's not working( unable to see the overload)

It seems that you are using newer version of API. Docs state that now authentication is set up(when needed) via environment variable:
Otherwise, the simplest way of authenticating your API calls is to download a service account JSON file then set the GOOGLE_APPLICATION_CREDENTIALS environment variable to refer to it. The credentials will automatically be used to authenticate. See the Getting Started With Authentication guide for more details.
So you can do something like this:
Environment.SetEnvironmentVariable("GOOGLE_APPLICATION_CREDENTIALS", "PathTo_VisionProject.json");
var client = ImageAnnotatorClient.Create();
Or set this environment variable some other way.

While setting the environment variable is certainly a simple way of specifying which service account file to use, it's not the only one. You can use the builder to specify the path very easily:
var client = new ImageAnnotatorClientBuilder
{
CredentialsPath = "VisionProject.json"
}.Build();

Another solution if you do not have access to the JSON file directly and you want to stay close to what you previously did with the GoogleCredential and Channel creation is something like:
var credential = GoogleCredential.FromFile("VisionProject.json");
// or if you have access to the content only
// var credential = GoogleCredential.FromJson(json);
var client = await new ImageAnnotatorClientBuilder
{
Endpoint = ImageAnnotatorClient.DefaultEndpoint,
ChannelCredentials = credential.ToChannelCredentials()
}.BuildAsync();

Zendesk - How to get users based on roles?

I am using Elizabeth's wrapper from https://github.com/mozts2005/ZendeskApi_v2
I want to pull a list of agents. I don't see any built in Function that will allow that.
I have tried using the endpoint of /api/v2/users.json?role=agent with the GetAllUsers() function but it still returns all of them.
Right now, I am going to add a custom field to be able to search for them, but that should not be the case, especially since Zendesk's API does have an option for returning users based on their role: /api/v2/users.json?role[]=admin&role[]=end-user
Can anyone help me out?

You can give a try to the Zendesk Search API:
from urllib.parse import urlencode
import requests
results = [] # Empty list to collect pagination results
credentials = 'your_zendesk_email', 'your_zendesk_password'
session = requests.Session()
session.auth = credentials
params = {
'query': 'type:user role:agent'
}
url = 'https://your_subdomain.zendesk.com/api/v2/search.json?' + urlencode(params)
while url:
response = session.get(url)
data = response.json()
results += data['results']
url = data['next_page'] # should return false according to the doc when the last page is reached
Useful resources:
zendesk api python tutorial
zendesk api pagination
Search endpoint seems to be supported also in the c# library you are using.

Google PageSpeed API dotnet .net

I have set up a basic C# application to run a PageSpeed test on a website that I specify using the Google.Apis.Pagespeedonline.v2 nuget package.
The set up is simple enough and I have a variable that I can specify the url which is then past in to the Service
// Create the service.
var service = new PagespeedonlineService(new BaseClientService.Initializer
{
ApplicationName = "PageSpeed Sample",
ApiKey = "[API_KEY_HERE]"
});
var url = "URL_TO_TEST";
// Run the request.
var result = await service.Pagespeedapi.Runpagespeed(url).ExecuteAsync();
The problem being the .Runpagespeed method ONLY accepts URL. I need to be able to specify, at minimum, the 'Mobile' strategy so I can obtain scores for both Desktop and Mobile. I know this is possible in other libraries but seems to be missing in .NET. Is anybody aware of a way to do this using the .NET library? In the reference documentation it implies that the method accepts further optional parameters but it does not in the code.

Pagespeedapi: runpagespeed has an optional value called strategy
strategy string The analysis strategy to use
Acceptable values are: "desktop": Fetch and analyze the URL for
desktop browsers "mobile": Fetch and analyze the URL for mobile
devices
Example:
var request = service.Pagespeedapi.Runpagespeed(url);
request.Strategy = Google.Apis.Pagespeedonline.v2.PagespeedapiResource.RunpagespeedRequest.StrategyEnum.Mobile;
var results = request.Execute();

Facebook page /feed missing images

I was using the Facebook Public API Feed for the longest time and since they deprecated it I've been trying to find a replacement method in C#.
I am able to get my page posts but any post that contains images I only get the message and no images. After spending the past weekend trying to find a way I am desperate to know if anyone has had any success in getting full page post content from the Facebook C# SDK library.
Here is what I have and it works for getting the posts but they do not contain any images.
var fb = new FacebookClient
{
AppId = ConfigurationManager.AppSettings.Get("FacebookAppID"),
AppSecret = ConfigurationManager.AppSettings.Get("FacebookAppSecret"),
AccessToken = ConfigurationManager.AppSettings.Get("FacebookAccessToken")
};
var pageFeed = string.Format("/v2.4/{0}/feed", _facebookPageId);
dynamic response = fb.Get(pageFeed);

Since the upgrade in Graph API v2.4. Only a limited set of data is sent via FB unless specifically requested. You should pass the fields parameter with the keyword of data which you would like to retrieve.
A list of keyword is available here
In your case, the request statement would be:
var pageFeed = string.Format("/v2.4/{0}/feed?fields=id,message,picture", _facebookPageId);
To get all pictures from a post: replace picture with attachments, as picture will return the very first picture linked to the post.
var pageFeed = string.Format("/v2.4/{0}/feed?fields=id,message,attachments", _facebookPageId);

Google URL Shortner API Setting Service Parameters in C#

I'm using the Google URL Shortner API, https://code.google.com/p/google-api-dotnet-client/wiki/APIs#URL_Shortener_API, and need to set the quotaUser parameter. This should be do-able via the service.ServiceParameters dictionary and quotaUser is already a key in the dictionary, but it's read only so I can't set the value of quotaUser to what I need it to be. Any thoughts on how to accomplish this? I don't see why they would provide the dictionary but then no way to set the values in it.

Each service request contains QuotaUser property, so you can set as you want.
For example look in following sample code:
var service = new UrlshortenerService(new BaseClientService.Initializer()
{
Authenticator = auth,
ApplicationName = "PUT_HERE_YOUR_APP_NAME",
});
// some code here...
// create the request set its quota and execute
var request = service.Url.List();
request.QuotaUser = "PUT_HERE_YOUR_QUOTA"
UrlHistory result = request.Execute();
Take a look in our UrlshortenerService sample here for full sample for how to use Urlshortener service (I added the QuotaUser property after line 72)